You won't believe how teeny tiny this house is: Could you live in one?

Oh, you live in 300 square feet? How nice for you. I mean, this house is only three feet wide, but I’m sure you’re very committed to minimalist living too. How does Nils Holger Moormann’s “Walden ” get away with being so skinny? Well, it basically doesn’t have an inside — storage is incised into the outer wall, and the breakfast nook is a sort of pass-through cutout of the center. It inverts the usual “house” concept, of an empty space surrounded by walls. Instead, it’s more of a wall with some empty spaces in which you can eat, cook, and sleep. This is probably not a permanent living solution. It’s all very well and good to name it “Walden,” for instance, but Massachusetts (home of Walden Pond) is one place this would never fly — you would definitely need reliably mild and dry weather. But it’s portable, which means you could just load it up and follow the sun. Isn’t wand...